<template>
	<view class="container">
		<view>
			<view class="head-wrap">
				<image :src="$util.img('upload/uniapp/game/cards_head.png')" mode="widthFix"></image>
				<view class="rule-mark" @click="openRulePopup">规则</view>
			</view>
			<!-- 刮卡区域 -->
			<view class="prize-area">
				<view class="content-wrap">
					<view>
						<view class="guide-wrap" v-if="showGuide">
							<block v-if="gameInfo.status == 1">
								<view class="text ns-font-size-x-lg">刮开试试手气</view>
								<view class="btn ns-bg-color" :class="{'disabled': gameInfo.surplus_num == 0}" @click="lottery">点我刮奖{{'('+ gameInfo.points + '积分)'}}</view>
							</block>
							<block  v-else-if="gameInfo.status == 0">
								<view class="text ns-font-size-x-lg">活动尚未开始</view>
							</block>
							<block v-else>
								<view class="text ns-font-size-x-lg">活动已经结束</view>
							</block>
						</view>
						<!-- #ifdef MP -->
						<view class="canvas-shade" v-if="showGuide"></view>
						<canvas :disable-scroll="true" class="canvas" canvas-id="cardsCanvas" id="canvas"
							@touchmove="touchMove"  v-show="!showGuide && !popState"
						></canvas> 
						<!-- #endif -->
						
						<!-- #ifdef H5 -->
						<canvas :disable-scroll="true" class="canvas" canvas-id="cardsCanvas" id="canvas"
							@touchmove="touchMove"
						></canvas> 
						<!-- #endif -->
						<view class="result-wrap">
							<block v-if="result.is_winning">
								<view class="title">恭喜您中奖了</view>
								<view class="text ns-text-color">{{ result.award_name }}</view>
								<view class="tips">可到“我的中奖记录”中查看</view>
							</block>
							<block v-else>
								<view class="text ns-text-color">{{ gameInfo.no_winning_desc }}</view>
							</block>
						</view>
					</view>
				</view>
				<image :src="$util.img('upload/uniapp/game/cards_bg.png')" mode="widthFix"></image>
			</view>
			<view class="remain-box" v-if="gameInfo&&token">
				<view class="remain" v-if="gameInfo.surplus_num && showGuide">
					<!-- 还可以刮<text>{{'('+ gameInfo.surplus_num+'次)'}}</text> -->
					<text>今日还有{{ gameInfo.surplus_num+'次'}}刮奖机会</text>
					<text>丨</text>
					<text>再刮一次</text>
				</view>
				<view class="remain" v-if="gameInfo.surplus_num && !showGuide" @click="reCards">
					<!-- 还可以刮<text>{{'('+ gameInfo.surplus_num+'次)'}}</text> -->
					<text>今日还有{{ gameInfo.surplus_num+'次'}}刮奖机会</text>
					<text>丨</text>
					<text>再刮一次</text>
				</view>
				<view class="remain" v-if="!gameInfo.surplus_num">
					<text>今日你还有{{ gameInfo.surplus_num+'次'}}刮奖机会</text>
				</view>
			</view>
		
			<!-- 操作 -->
			<view class="operation-text">
				<view class="point">我的积分：{{ point }}</view>
				<view class="record" @click="$util.redirectTo('/promotionpages/game/record/record', {id: id})">我的中奖记录</view>
			</view>
			<!-- 中奖名单 -->
			<view class="record-wrap" v-if="gameInfo.is_show_winner && gameInfo.draw_record.length">
				<view class="body-shade"></view>
				<view class="head">中奖名单</view>
				<view class="body">
					<view class="wrap" :class="{animate: animate}">
						<view v-for="(item, index) in gameInfo.draw_record" :key="index">
							<view class="tit">{{ item.member_nick_name| cover }}</view>
							<view class="txt"><l-time :text="item.create_time * 1000"></l-time>获得 {{ item.award_name }}</view>
						</view>
					</view>
				</view>
			</view>
		</view>
		
		<!-- 活动规则 -->
		<uni-popup ref="rulePopup" type="center" :maskClick="false" @change="popChange">
			<view class="rule-wrap">
				<view class="content-wrap">
					<image :src="$util.img('upload/uniapp/game/rule_head.png')" mode="widthFix" class="rule-head"></image>
					<scroll-view scroll-y="true" class="rule">
						<view>
							<view class="tit">活动时间</view>
							<view class="text">{{ $util.timeStampTurnTime(gameInfo.start_time) }} - {{ $util.timeStampTurnTime(gameInfo.end_time) }}</view>
							<view class="tit">参与规则</view>
							<view class="text" v-if="gameInfo.join_type == 0">每个用户活动期间共有{{ gameInfo.join_frequency }}次抽奖机会。</view>
							<view class="text" v-else>每个用户活动期间每天都有{{ gameInfo.join_frequency }}次抽奖机会，每天0点更新。</view>
							<view class="text">每次抽奖需消耗 {{gameInfo.points}} 积分</view>
							<view class="text" v-if="gameInfo.level_id != 0">该活动只有{{ gameInfo.level_name }}等级的会员可参与。</view>
							<block v-if="gameInfo.remark != '' ">
								<view class="tit">活动说明</view>
								<view class="text">{{ gameInfo.remark }}</view>
							</block>
						</view>
					</scroll-view>
					<text class="iconfont iconroundclose" @click="closeRulePopup"></text>
				</view>
			</view>
		</uni-popup>
		
		<loading-cover ref="loadingCover"></loading-cover>
	</view>
</template>

<script>
	import uniPopup from '@/components/uni-popup/uni-popup.vue';
	import LTime from "@/components/l-time/l-time.vue";
	
	export default {
		components:{
			uniPopup,
			LTime
		},
		data() {
			return {
				ctxData: null,
				ctx: null,
				ctxW: 0,
				ctxH: 0,
				scaleRatio: 1,
				showGuide: true,
				id: 0,
				gameInfo: { // 游戏数据
					no_winning_desc: '',
					surplus_num: 0
				}, 
				result: { // 抽奖结果
					is_winning: 0
				},
				isClick: false,
				point: 0,
				animate: false,
				scrollTimer: null,
				siteId:0,
				token:"",
				popState: false
			};
		},
		onLoad(option) {
			if (option.id) this.id = option.id;
			if (option.site_id) this.siteId = option.site_id;
			this.getGameInfo();
		},
		onShow() {
			// 刷新多语言
			this.$langConfig.refresh();
			
			if (uni.getStorageSync('token')) {
				this.token=uni.getStorageSync('token')
				this.getMemberPointInfo();
			}
		},
		methods: {
			popChange(e){
				this.popState=e.show;
			},
			getMemberPointInfo(){
				this.$api.sendRequest({
					url: '/api/memberaccount/info',
					data: {
						account_type: 'point'
					},
					success: res => {
						if (res.data) {
							this.point = parseInt(res.data.point);
						} 
					}
				});
			},
			createCtx(){
				this.ctx = uni.createCanvasContext('cardsCanvas', this);
				this.ctx.setFillStyle('#e5e5e5');
				this.ctx.fillRect(0, 0, this.ctxW, this.ctxH);
				this.ctx.globalCompositeOperation = "destination-out";
				this.ctx.draw();
			},
			touchMove(event){
				event.preventDefault()
				var canvasRect = this.ctxData;
				this.ctx.beginPath()
				this.ctx.arc(event.touches[0].x, event.touches[0].y, 10 * this.scaleRatio, 0, Math.PI * 2);
				this.ctx.globalCompositeOperation = "destination-out";
				this.ctx.setFillStyle('#fff')
				this.ctx.fill()
				this.ctx.draw(true);
			},
			// 抽奖
			lottery(){
				if (!uni.getStorageSync('token')) {
					this.$util.redirectTo('/pages/login/login/login', { back: '/promotionpages/game/cards/cards?id=' + this.id });
					return;
				}
				if (this.gameInfo.status != 1) return;
				if (this.gameInfo.surplus_num <= 0) {
					this.$util.showToast({title: '您的抽奖次数已用完'});
					return;
				}
				if (this.gameInfo.points > 0 && this.point < this.gameInfo.points) {
					this.$util.showToast({title: '积分不足'});
					return;
				}
				if (this.isClick) return;
				this.isClick = true;
				this.$api.sendRequest({
					url: '/cards/api/cards/lottery',
					data: {
						id: this.id,
						site_id:this.siteId
					},
					success: res => {
						if (res.code >= 0) {
							this.showGuide = false;
							this.result = res.data;
							
							// #ifdef MP 
							const query = uni.createSelectorQuery().in(this);
							query.select('.guide-wrap').boundingClientRect(data => {
								this.ctxData = data;
								this.ctxW = data.width;
								this.ctxH = data.height;
								this.createCtx();
							}).exec();
							// #endif
							
							// 扣除次数 积分
							this.point -= this.gameInfo.points;
							this.gameInfo.surplus_num -= 1;
							
						} else {
							this.$util.showToast({ title: res.message });
						}
					}
				})
			},
			getGameInfo(){
				this.$api.sendRequest({
					url: '/cards/api/cards/info',
					data: {
						site_id: this.siteId,
						id:this.id
					},
					success: res => {
						if (res.code >= 0 && res.data) {
							this.gameInfo = res.data;
							if (this.$refs.loadingCover) this.$refs.loadingCover.hide();
							
							if (this.gameInfo.is_show_winner && this.gameInfo.draw_record.length > 6) {
								this.scrollTimer = setInterval(this.scrollRecord, 2000);
							}
						} else {
							this.$util.showToast({ title: '未获取到活动信息!！'});
							setTimeout(() => {
								this.$util.redirectTo('/pages/index/index/index', {}, 'reLaunch');
							}, 1500);
						}
					}, 
					fail: res => {
						this.$util.showToast({ title: '未获取到活动信息!！'});
						setTimeout(() => {
							this.$util.redirectTo('/pages/index/index/index', {}, 'reLaunch');
						}, 1500);
					}
				});
			},
			openRulePopup(){
				this.$refs.rulePopup.open();
			},
			closeRulePopup(){
				this.$refs.rulePopup.close();
			},
			scrollRecord(){
				this.animate = true;
				setTimeout(() => {
					this.gameInfo.draw_record.push(this.gameInfo.draw_record[0]);  // 将数组的第一个元素添加到数组的
					this.gameInfo.draw_record.shift();  
					this.animate = false;
				}, 1000)
			},
			reCards(){
				if(this.showGuide) return;
				let data={
					ctxData: null,
					ctx: null,
					ctxW: 0,
					ctxH: 0,
					scaleRatio: 1,
					showGuide: true,
					gameInfo: { // 游戏数据
						no_winning_desc: '',
						surplus_num: 0
					}, 
					result: { // 抽奖结果
						is_winning: 0
					},
					isClick: false,
					point: 0,
					animate: false,
					scrollTimer: null,
				}
				Object.assign(this.$data,data)
				this.getGameInfo();
				if (uni.getStorageSync('token')) {
					this.getMemberPointInfo();
				}
				// #ifdef H5
				const query = uni.createSelectorQuery().in(this);
				query.select('#canvas').boundingClientRect(data => {
					this.ctxData = data;
					this.ctxW = data.width;
					this.ctxH = data.height;
					this.createCtx();
				}).exec();
				// #endif
			}
		},
		onReady() {
			// #ifdef H5 
			const query = uni.createSelectorQuery().in(this);
			query.select('#canvas').boundingClientRect(data => {
				this.ctxData = data;
				this.ctxW = data.width;
				this.ctxH = data.height;
				this.createCtx();
			}).exec();
			// #endif
		},
		filters:{
			cover(str){
				return str.substr(0, 1) + '******' + str.substr(-1);
			}
		},
		onHide() {
			clearInterval(this.scrollTimer);
		}
	}
</script>

<style lang="scss">
	@import '../public/css/cards.scss';
</style>
<style scoped>
	>>>.uni-popup__wrapper.uni-custom .uni-popup__wrapper-box {
		background: none !important;
	}
	>>>.uni-popup__wrapper.uni-custom.center .uni-popup__wrapper-box{
		overflow: unset;
	}
</style>